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Vulnerability record · CVE-2003-0131 · published 24 March 2003

CVE-2003-0131: Openssl vulnerability

OOpenssl · Openssl

The SSL and TLS components for OpenSSL 0.9.6i and earlier, 0.9.7, and 0.9.7a allow remote attackers to perform an unauthorized RSA private key operation via a modified Bleichenbacher attack that uses a large number of SSL or TLS connections using PKCS #1 v1.5 padding that cause OpenSSL to leak information regarding the relationship between ciphertext and the associated plaintext, aka the "Klima-Pokorny-Rosa attack."

7.5 CVSS 2.0 High EPSS 6.3% · top 6.7%
7.5CVSS 2.0 base score
6.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
52References
16 Jun 2026Last modified by NVD

Description

The SSL and TLS components for OpenSSL 0.9.6i and earlier, 0.9.7, and 0.9.7a allow remote attackers to perform an unauthorized RSA private key operation via a modified Bleichenbacher attack that uses a large number of SSL or TLS connections using PKCS #1 v1.5 padding that cause OpenSSL to leak information regarding the relationship between ciphertext and the associated plaintext, aka the "Klima-Pokorny-Rosa attack."

AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2003-007.txt.asc
ftp://ftp.sco.com/pub/security/OpenLinux/CSSA-2003-014.0.txt
ftp://patches.sgi.com/support/free/security/advisories/20030501-01-I
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000625
http://eprint.iacr.org/2003/052/ Vendor Advisory
http://lists.apple.com/mhonarc/security-announce/msg00028.html
http://marc.info/?l=bugtraq&m=104811162730834&w=2
http://marc.info/?l=bugtraq&m=104852637112330&w=2
http://marc.info/?l=bugtraq&m=104878215721135&w=2
http://www.debian.org/security/2003/dsa-288
http://www.gentoo.org/security/en/glsa/glsa-200303-20.xml
http://www.kb.cert.org/vuls/id/888801 Third Party AdvisoryUS Government Resource
http://www.linuxsecurity.com/advisories/immunix_advisory-3066.html
http://www.mandriva.com/security/advisories?name=MDKSA-2003:035
http://www.openpkg.org/security/OpenPKG-SA-2003.026-openssl.html
http://www.openssl.org/news/secadv_20030319.txt
http://www.redhat.com/support/errata/RHSA-2003-101.html
http://www.redhat.com/support/errata/RHSA-2003-102.html
http://www.securityfocus.com/archive/1/316577/30/25310/threaded
http://www.securityfocus.com/archive/1/316577/30/25310/threaded
http://www.securityfocus.com/archive/1/316577/30/25310/threaded
http://www.securityfocus.com/archive/1/316577/30/25310/threaded
http://www.securityfocus.com/bid/7148 PatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/11586
https://lists.opensuse.org/opensuse-security-announce/2003-04/msg00005.html
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A461
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2003-007.txt.asc
ftp://ftp.sco.com/pub/security/OpenLinux/CSSA-2003-014.0.txt
ftp://patches.sgi.com/support/free/security/advisories/20030501-01-I
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000625
http://eprint.iacr.org/2003/052/ Vendor Advisory
http://lists.apple.com/mhonarc/security-announce/msg00028.html
http://marc.info/?l=bugtraq&m=104811162730834&w=2
http://marc.info/?l=bugtraq&m=104852637112330&w=2
http://marc.info/?l=bugtraq&m=104878215721135&w=2
http://www.debian.org/security/2003/dsa-288
http://www.gentoo.org/security/en/glsa/glsa-200303-20.xml
http://www.kb.cert.org/vuls/id/888801 Third Party AdvisoryUS Government Resource
http://www.linuxsecurity.com/advisories/immunix_advisory-3066.html
http://www.mandriva.com/security/advisories?name=MDKSA-2003:035

Track CVE-2003-0131 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2003-0131), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.